5 Series Blocks offer small to medium sized cruising and racing yachts an extremely high strength/weight ratio resulting in a highly refined and reliable block. Their strength and styling has also made them popular for medium use on bigger yachts teaming up with our larger series blocks.
Schaefer's versatile Universal Head design has a three way built in locking feature and accepts "universal" adapters for custom mounting. Schaefer offers you the choice of brilliant stainless steel or hardcoat anodized aluminum cheeks with UV protected Delrin or Delrin Ball Bearing sheaves. 5 Series Blocks provide you with extreme durability and versatility.